2008 Audi RS6 Spy Shots To go up against Mercedes E63 AMG and BMWs M5, Audi is planning to offer the hot RS6. Priddy’s ninjas caught it here, at the Nrburgring, while it was undergoing some late prototype testing this week. The larger air intakes in the front bumper and the wider fenders and diffuser at the rear, are the key clues as to the true identity of this Audi. And while the S models have four round exhaust pipes, the RS models will receive oval pipes as their distinguishing feature. 2008 Audi RS6 Spy Shots 2008audirs6shotsspy in Public bookmarkswith 2008audiautoautomotivenewsrs6shotsspy